Randomized, Double-Blind, Split-Face Study to Compare the Irritation Potential of Two Topical Acne Formulations Over a 21-Day Treatment Period

J Drugs Dermatol. 2016 Feb;15(2):178-82.

Abstract

The use of fixed combinations in acne vulgaris (acne) is very common, however comparative clinical trial data are limited. Cutaneous tolerability can influence patient compliance, and concerns about skin irritation with topical acne treatments have lead to a number of comparative split-face studies. Recently, a new fixed combination product was introduced (clin 1.0%-BP 3.75% gel) that was shown to be effective in reducing both inflammatory and noninflammatory lesions in moderate to severe acne. Here, we assess the tolerability of clin 1.0%-BP 3.75% gel compared with adap 0.1%-BP 2.5% gel in healthy volunteers with no apparent facial redness or dryness over 21-days, using a split-face methodology. Especially over the first two weeks of treatment, clin 1.0%-BP 3.75% gel was more tolerable than adap 0.1%-BP 2.5% gel, with statistically significant differences in cumulative change from baseline starting as early as day 8 (dryness) and day 9 (erythema), and composite index on days 8-12 and 16. Transepidermal water loss was less with clin 1.0%-BP 3.75% gel, although the difference was not statistically significant.

Publication types

  • Comparative Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acne Vulgaris / diagnosis*
  • Acne Vulgaris / drug therapy*
  • Administration, Cutaneous
  • Adolescent
  • Adult
  • Anti-Bacterial Agents / administration & dosage
  • Anti-Bacterial Agents / adverse effects
  • Benzoyl Peroxide / administration & dosage*
  • Benzoyl Peroxide / adverse effects*
  • Dermatitis, Irritant / diagnosis*
  • Dermatologic Agents / administration & dosage
  • Dermatologic Agents / adverse effects
  • Double-Blind Method
  • Drug Administration Schedule
  • Erythema / chemically induced
  • Erythema / diagnosis
  • Female
  • Humans
  • Male
  • Middle Aged
  • Skin Irritancy Tests / methods
  • Time Factors
  • Young Adult

Substances

  • Anti-Bacterial Agents
  • Dermatologic Agents
  • Benzoyl Peroxide